Zoom In and Zoom Out with the mouse

We can reduce (zoom out) and enlarge (zoom in) documents we use to view menu, and then select the ZOOM, then select the enlargement or diminution.If your computer have scroll button you can very quickly to use the facilities zoom in and zoom out, Scroll button is located between right button and left at Mouse. how to do it?, you can press CRT + Scroll and then you drive the scroll for Zoom in